docker_daemon: Adds test for testing docker daemon icc parameter.

Signed-off-by: Jiří Župka <jzupka@redhat.com>
Docker: Pylint cleanup

*  Clarify DockerContainersBase.remove_by_name() raises
   ValueError if container is not found with name.
*  Ignore SpecificServiceManager implementation pylint problems
*  More descriptive names in output.wait_for_output()
*  Fix module namespace/scoping problem in network test
*  Fix too-long line in network test
*  Fix ignoring OutputGood exception in network test.
*  Fix setting attribute outside init in network test
*  Removed TODO in help test (resolved in later version)
*  Unused import removal from syslog test

Signed-off-by: Chris Evich <cevich@redhat.com>
subtests...network: Wait for container start

Use standard utils.wait_for() call to poll on container start
to get ip address using docker inspect.  Give sufficiently
long timeout incase of image load.

Signed-off-by: Chris Evich <cevich@redhat.com>